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Portfolio Loans - Summary of Recorded Investment in Impaired Portfolio Loans by Category (Details) - Non-Covered Loans - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
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Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual | $ 16,520 | $ 14,968
Restructured, not on non-accrual | 225 | 719
Total Recorded Investment | 16,745 | 15,687
Commercial and industrial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual | 12,805 | 11,946
Restructured, not on non-accrual | 145 | 719
Total Recorded Investment | 12,950 | 12,665
CRE - investor owned |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual | 398 | 422
Restructured, not on non-accrual | 0 | 0
Total Recorded Investment | 398 | 422
CRE - owner occupied |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual | 808 | 487
Restructured, not on non-accrual | 0 | 0
Total Recorded Investment | 808 | 487
Construction and land development |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual | 0 | 136
Restructured, not on non-accrual | 0 | 0
Total Recorded Investment | 0 | 136
Residential real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual | 2,197 | 1,602
Restructured, not on non-accrual | 80 | 0
Total Recorded Investment | 2,277 | 1,602
Consumer and other |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual | 312 | 375
Restructured, not on non-accrual | 0 | 0
Total Recorded Investment | $ 312 | $ 375

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- Definition The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=82895541&loc=d3e18845-111554 + Details
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- Definition Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5111-111524 + Details
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- Definition Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953550-111524 + Details
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